Ability to specify source and destination directories

[mirkonasato]

The 6to5 command line tool lets you "compile the entire src directory and output it to the lib directory"

$ 6to5 src --out-dir lib

while grunt-6to5 seems to work only if you list each individual file. (Unless I'm missing something obvious?)

[willsoto]

The task can take a files array, like so:

files: [{
    expand: true,
    cwd: 'app',
    src: ['**/*.es6.js'],
    dest: 'app',
    ext: '.js'
}]

This will:

1. Find all files in the app directory with the .es6.js extension
2. Compile them and output them to their respective directory with the .js extension

[sindresorhus]

The above is documented in the grunt docs and is common to all grunt tasks.